Chair shell



FIG. 1 is a front perspective view of a chair shell;

FIG. 2 is a front view of the chair shell of FIG. 1;

FIG. 3 is a rear view of the chair shell of FIG. 1;

FIG. 4 is a right side of the chair shell of FIG. 1;

FIG. 5 is a left side of the chair shell of FIG. 1;

FIG. 6 is a top plan view of the chair shell of FIG. 1; and,

FIG. 7 is a bottom plan view of the chair shell of FIG. 1.

The broken lines showing portions of the article are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a chair shell, as shown and described. 